CN105889529A - Plunger type well drilling throttle valve - Google Patents
Plunger type well drilling throttle valve Download PDFInfo
- Publication number
- CN105889529A CN105889529A CN201610497513.7A CN201610497513A CN105889529A CN 105889529 A CN105889529 A CN 105889529A CN 201610497513 A CN201610497513 A CN 201610497513A CN 105889529 A CN105889529 A CN 105889529A
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- CN
- China
- Prior art keywords
- valve
- plunger type
- guide pin
- pin bushing
- valve rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention discloses a plunger type well drilling throttle valve. The plunger type well drilling throttle valve comprises a valve body (1), a valve seat (2) arranged in the valve body (1) and a valve rod assembly (3), wherein a valve cover (6) and a shell (7) are arranged on the valve body (1), the valve rod assembly (3) is provided with a valve rod (301) and a valve element (302) which is connected with the lower end of the valve rod (301) and is matched with the valve seat (2), the valve rod (301) movably penetrates through the valve cover (6) and is connected with a piston (8) arranged in the shell (7), a guide sleeve (5) is fixedly arranged in the valve body (1), the guide sleeve (5) and the valve body (1) are in seal fit, the valve element (302) can move up and down in the guide sleeve (5) and is in fit with the guide sleeve (5); and the valve cover (6) compresses and fixes the guide sleeve (5) into the valve body (1). The plunger type well drilling throttle valve adopts a structure that the valve cover compresses the guide sleeve, the effect of protecting the valve rod is realized, safety and reliability of the plunger type well drilling throttle valve are improved, service life of the valve is prolonged, and the plunger type well drilling throttle valve is especially applicable to high temperature and high pressure well drilling working condition.
Description
Technical field
The present invention relates to valve technology field, be especially adapted for use in the drilling well choke valve in the throttle well killing manifold of land and offshore oil, gas drilling.
Background technology
Choke valve is by changing throttling cross section or chock length to control the valve of fluid flow.Plunger-type throttle valve, in the manifold system being arranged on oil, gas drilling, is used for controlling production flow and the pressure of Oil/gas Well.Along with the reinforcement of oil exploitation dynamics, the continuous appearance of high pressure even supertension oil well, drilling equipment is had higher requirement.Drilling well choke valve, as the core component of choke manifold, plays the effect controlling well kick pressure in drilling process, by regulating the aperture of choke valve, it is achieved Stress control.The safety and reliability of drilling well choke valve is for evaluating the two of choke manifold level principal elements.
In the structure of existing choke valve, the spool of the cemented carbide structure of valve rod and lower end thereof exposes in the fluid passage, under the long-term percussion by high pressure medium, valve rod is easily generated vibrations, the spool of cemented carbide structure easily separates with valve rod and comes off, even can cause the problems such as valve stem crack time serious, cause choke valve ineffective.
Strong especially for corrosivity, the drilling condition of the High Temperature High Pressure that erosion is high, the choke valve of prior art is the most applicable.Therefore, need the structure for choke valve at present badly and improve, to strengthen the corrosion-resistant of choke valve and erosion resistance so that it is be more suitable in drilling well cutting condition.
Summary of the invention
In view of this, in order to overcome the defect of above-mentioned prior art, it is an object of the invention to provide a kind of corrosion resistance and the higher choke valve of erosion wear resistance, to promote the safety and reliability of choke valve, thus be applicable in the drilling condition of High Temperature High Pressure.
In order to achieve the above object, the present invention is by the following technical solutions:
A kind ofPlunger type drilling well choke valveThe valve seat that including valve body, is arranged in described valve body, valve rod assembly, valve body is provided with valve gap and housing, described valve rod assembly has valve rod and the lower end being connected to described valve rod the spool coordinated with described valve seat, described valve handle activity through described valve gap and is connected with the piston being located in described housing, it is characterised in that:
Being installed with guide pin bushing in described valve body, seal and coordinate between described guide pin bushing with described valve body, described spool can be equipped with up and down in described guide pin bushing；Described guide pin bushing is pressed abd fixed in described valve body by described valve gap.
ThisInvention'sPlunger type drilling well choke valveHave employed the structure of guide pin bushing, spool moves up and down in guide pin bushing and realizes opening and closing valve, and the medium that efficiently avoid High Temperature High Pressure directly impacts valve rod, protects valve rod assembly, extends the service life of valve.
Preferably, the upper periphery of described guide pin bushing has the stage portion of outwardly convex and is supported on described valve body, the upper end of described guide pin bushing has the raised section raised up, the bottom of described valve gap is connected with described valve body screw thread and the lower end of described valve gap has the groove being enclosed within described cooperation section, and described stage portion is pressed on described valve body by the lower end of described valve gap.
It is highly preferred that be provided with guide pin bushing lower seal assembly on the periphery that described guide pin bushing is below described stage portion and between described valve body, between periphery and the groove of described valve gap of the raised section of described guide pin bushing, it is provided with black box on guide pin bushing.
Wherein, between the top of described valve rod with fixed seat, coordinated by sealing member sealing respectively between the middle part of described valve rod and described valve gap and between described spool with described guide pin bushing.It is designed with sealing member at the spool of the top of valve rod, middle part and bottom, not only acts as the effect of more preferably sealing, and it is more steady to make valve rod assembly run.
Preferably, described housing being fixed with upper fixed seat, fixed seat is provided with opening indicator device, and the upper end of described valve rod is upward through fixed seat and is connected with described opening indicator device.
In order to realize local valve position, described opening indicator device includes push rod and the instruction dish being connected with described valve rod.Preferably, described instruction dish is provided with indicator board with a scale.The up and down motion of valve rod assembly drives push rod to move up and down, and the scale shown on indicator board by push rod can show the aperture of valve.
In order to realize long-range valve position, describedPlunger type drilling well choke valveAlso including valve position indicator and aperture table, described valve position indicator detects the linear displacement signal of described valve rod and described linear displacement signal is converted to the signal of telecommunication is delivered on the aperture table of throttle well killing manifold.
Preferably, the upper and lower of the outer circumference surface of described piston is respectively equipped with the piston seal that the inner wall sealing with described housing coordinates.Use the structure of double containment, make piston run more steady.
In a particular embodiment, described valve rod is provided with piston in the part exceeding described valve gap and fixes step and piston connection screw thread, and described piston is threadedly attached on described piston connection screw thread and is fixed on described piston by locking nut and fixes on step.
Owing to using technique scheme, what the present invention reached has the technical effect that
(1) by increasing the structure of guide pin bushing, it is to avoid medium directly impacts valve rod, strengthen corrosion resistance and the erosion wear resistance of invention, extend life of valve；
(2) it is designed with sealing member respectively in the upper, middle and lower of valve rod assembly, it is achieved while good sealing effectiveness, makes valve rod assembly run more steady；
(3) piston uses the structure of double containment, and sealing effectiveness is more preferably and piston runs more steady.
Accompanying drawing explanation
Figure 1For the present invention'sPlunger type drilling well choke valveMaster regardFigure。
Figure 2ForFigure 1In C-C to section viewFigure。
Figure 3ForFigure 1In A regard to localFigure。
Figure 4ForFigure 1In B regard to localFigure。
Figure 5ForFigure 2In I portion amplify signalFigure。
Attached In figurenull: 1-valve body，2-valve seat，3-valve rod assembly，301-valve rod，302-spool，303-piston fixes step，304-piston connects screw thread，4-plug，5-guide pin bushing，51-stage portion，52-raised section，6-valve gap，61-groove，7-housing，8-piston，9-upper fixed seat，10-sensor protection cylinder，11-nut，12-stud，13-push rod，14-instruction dish，15-spring washer，16-gasket ring，17-dust ring，18-valve rod upper seal，19-O type circle，20-locking nut，21-piston seal，22-guidance tape，Seal in the middle part of 23-valve rod，24-valve stem packing，25-gasket ring，26-back-up ring，27-stem lower portion sealing member，28-back-up ring，29-O shape circle，30-back-up ring，31-O shape circle，32-back-up ring，33-O shape circle，34-O shape circle，35 nameplates，36 directional arrows，37-rivet，38-indicator board，39-screw.
Detailed description of the invention
Below in conjunction withAccompanying drawingThe preferred embodiment of the present invention is described in detail.
Embodiment one
Refer toFigure 1 Extremely 5, the one of the present embodimentPlunger type drilling well choke valve, including valve body 1, valve seat 2, the valve seat 2 being arranged in valve body 1, valve rod assembly 3, plug 4, guide pin bushing 5, valve gap 6, housing 7, piston 8, upper fixed seat 9, valve opening instruction device, valve position indicator and sensor protection cylinder 10.
Guide pin bushing 5 is located in valve body 1, seals and coordinate between guide pin bushing 5 with valve body 1.Valve rod assembly 3 has valve rod 301 and the lower end being connected to valve rod 301 spool 302 coordinated with valve seat 2, and spool 302 is connected with valve rod 301 by screw thread and is fixed by screw.Spool 302 can be equipped with up and down in guide pin bushing 5, and the valve rod assembly 3 band movable valve plug 302 that moves up and down moves up and down, thus realizes the opening and closing of valve.In the present embodiment, spool 302 is cemented carbide structure.
Valve gap 6 is arranged on valve body 1, is pressed abd fixed in valve body 1 by guide pin bushing 5, and the upper end activity of valve rod 301 passes valve gap 6.The upper periphery of guide pin bushing 5 has the stage portion 51 of outwardly convex and is supported on described valve body 1, the upper end of guide pin bushing 5 has the raised section 52 raised up, threaded with valve body 1 and valve gap 6 lower end, the bottom of valve gap 6 has the groove 61 being enclosed within the described section of cooperation 52, and stage portion 51 is pressed on valve body 1 by the lower end of valve gap 6.
It is provided with guide pin bushing lower seal assembly on the guide pin bushing 5 periphery below stage portion 51 and between valve body 1, between periphery and the groove 61 of valve gap 6 of the raised section 52 of guide pin bushing 5, is provided with black box on guide pin bushing.Such as figure 5Shown in, on guide pin bushing, black box includes that back-up ring 30 and O 31, guide pin bushing lower seal assembly include back-up ring 32 and O 33.
Housing 7 is fixed on the upper end of valve gap 6, upper fixed seat 9 is fixed on housing 7 upper end, valve gap 6, housing 7 and upper fixed seat 9 form an inside and have the structure of closed cavity, piston 8 can be located at up and down in housing 7 and this closed cavity separates upper upper and lower two parts, valve rod 301 is movable through valve gap 6, piston 8 and upper fixed seat 9, and piston 8 is fixing with valve rod 301 to be connected.Specifically, the upper and lower of the outer circumference surface of piston 8 is respectively equipped with the piston seal 21 that the inner wall sealing with housing 7 coordinates, and is additionally provided with guidance tape 22 between upper and lower two piston seals 21.Use the structure of double containment, make piston 8 run more steady.Piston 8 with the connected mode of valve rod 301 is: valve rod 301 is provided with piston in the part exceeding valve gap 6 and fixes step 303 and piston is connected screw thread 304, and piston 8 is threadedly attached in piston and connects on screw thread 304 and be fixed and clamped by locking nut 20 and fix on step 303 at piston.
It is provided with valve rod upper seal 18 between top and the upper fixed seat 9 of valve rod 301, between middle part and the valve gap 6 of valve rod 301, is provided with sealing member 23 in the middle part of valve rod, between spool 302 and the guide pin bushing 5 of valve rod assembly 3, be provided with stem lower portion sealing member 27.Owing to upper, middle and lower part is designed with sealing, not only guarantee that the sealing effectiveness of valve rod assembly 3 is more preferable, and it is more steady to make valve rod assembly 3 run.
The present embodimentPlunger type drilling well choke valveWork process be described as follows.
Valve opening process: by the oil-in on valve gap 6, hydraulic medium is injected in the closed containing cavity of the lower part in housing 7, the hydraulic medium in the closed containing cavity of upper part hydraulic fluid port from upper fixed seat 9 is discharged simultaneously, piston 8 is promoted to move upward under the effect of hydraulic medium, piston 8 drives valve rod assembly 3 to move upward, so that the orifice size that the spool 302 of valve rod assembly 3 and valve seat 2 are formed becomes big, valve opening.
Valve closing process: by the oil-in on upper fixed seat 9, hydraulic medium is injected in the closed containing cavity of the upper part in housing 7, the hydraulic oil of the closed containing cavity of lower part hydraulic fluid port from valve gap 6 is discharged simultaneously, piston 8 is promoted to move downward under the effect of hydraulic medium, piston 8 drives valve rod assembly 3 to move downward, so that the orifice size that the spool 302 of valve rod assembly 3 and valve component 2 are formed diminishes, valve closing.
Additionally, in the present embodiment, the outer peripheral face of the bottom of valve rod assembly 3 also has diameter conical seal (contact) face the most from large to small, is positioned at the bottom of spool 302, have on valve component 2 and the valve base sealing inclined-plane of valve rod assembly 3 conical seal (contact) face corresponding matchingSuch as figure 2Shown in, when the conical seal (contact) face of valve closing to valve rod 3 coordinates with the valve base sealing contact of incline plane of valve component 2, it is achieved that the sealing between valve rod 3 and valve component 2, stops medium to pass through.
In order to realize valve position, upper fixed seat 9 is provided with opening indicator device, and the upper end of valve rod 301 is upward through upper fixed seat 9 and is connected with opening indicator device.Opening indicator device includes push rod 13 and the instruction dish 14 being connected with valve rod 301.Such as figure 4Shown in, instruction dish 14 is provided with indicator board 28 with a scale.The up and down motion of valve rod assembly 3 drives push rod 13 to move up and down, and the scale shown on indicator board 28 by push rod 13 can be with the aperture of locally displayed valve.In order to realize long-range valve position, the present embodimentPlunger type drilling well choke valveAlso including valve position indicator and aperture table, linear displacement signal is also converted to the signal of telecommunication and is delivered on the aperture table of throttle well killing manifold by the linear displacement signal of valve position indicator detection valve rod 301.It is additionally provided with sensor protection cylinder 10 on upper fixed seat 9 and protects opening display device and valve position indicator.
The present embodimentPlunger type drilling well choke valveHave employed valve gap 6 and compress the structure of guide pin bushing 5, spool 302 moves up and down in guide pin bushing 5 and realizes opening and closing valve, and the medium that efficiently avoid High Temperature High Pressure directly impacts valve rod 301, protects valve rod assembly 3, extends the service life of valve.The present embodimentPlunger type drilling well choke valveHaving more preferable corrosion resistance and erosion wear resistance, the drilling condition in High Temperature High Pressure uses more safe and reliable.
Above-described embodiment is only for technology design and the feature of the explanation present invention; its object is to allow person skilled in the art will appreciate that present disclosure and to implement according to this; can not limit the scope of the invention with this; all equivalence changes made according to spirit of the invention or modification, all should contain within protection scope of the present invention.
Claims (10)
1. a plunger type drilling well choke valve, the valve seat (2) that including valve body (1), is arranged in described valve body (1), valve rod assembly (3), valve body (1) is provided with valve gap (6) and housing (7), described valve rod assembly (3) has valve rod (301) and the lower end being connected to described valve rod (301) the spool (302) coordinated with described valve seat (2), described valve rod (301) is movable through described valve gap (6) and to be connected with the piston (8) being located in described housing (7), it is characterised in that:
Being installed with guide pin bushing (5) in described valve body (1), seal and coordinate between described guide pin bushing (5) with described valve body (1), described spool (302) can be equipped with up and down in described guide pin bushing (5)；Described guide pin bushing (5) is pressed abd fixed in described valve body (1) by described valve gap (6).
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterized in that: the upper periphery of described guide pin bushing (5) has the stage portion (51) of outwardly convex and is supported on described valve body (1), the upper end of described guide pin bushing (5) has the raised section (52) raised up, the lower end of the bottom of described valve gap (6) valve gap threaded and described with described valve body (1) (6) has the groove (61) being enclosed within the described section of cooperation (52), and described stage portion (51) is pressed on described valve body (1) by the lower end of described valve gap (6).
A kind of plunger type drilling well choke valve the most according to claim 2, it is characterized in that: described guide pin bushing (5) is provided with guide pin bushing lower seal assembly on the periphery of described stage portion (51) lower section and between described valve body (1), is provided with black box on guide pin bushing between periphery and the groove (61) of described valve gap (6) of the raised section (52) of described guide pin bushing (5).
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterised in that: sealed by sealing member respectively between the top of described valve rod (301) with fixed seat (9), between the middle part of described valve rod (301) and described valve gap (6) and between described spool (302) with described guide pin bushing (5) and coordinate.
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterized in that: on described housing (7), be fixed with upper fixed seat (9), fixed seat (9) is provided with opening indicator device, and the upper end of described valve rod (301) is upward through fixed seat (9) and is connected with described opening indicator device.
A kind of plunger type drilling well choke valve the most according to claim 5, it is characterised in that: described opening indicator device includes push rod (13) and the instruction dish (14) being connected with described valve rod (301).
A kind of plunger type drilling well choke valve the most according to claim 6, it is characterised in that: described instruction dish (14) is provided with indicator board (28) with a scale.
8. according to a kind of plunger type drilling well choke valve described in claim 6 or 7, it is characterized in that: described plunger type drilling well choke valve also includes valve position indicator and aperture table, described valve position indicator detects the linear displacement signal of described valve rod (301) and described linear displacement signal is converted to the signal of telecommunication is delivered on the aperture table of throttle well killing manifold.
A kind of plunger type drilling well choke valve the most according to claim 1, it is characterised in that: the upper and lower of the outer circumference surface of described piston (8) is respectively equipped with the piston seal (21) that the inner wall sealing with described housing (7) coordinates.
A kind of plunger type drilling well choke valve the most according to claim 9, it is characterized in that: described valve rod (301) is provided with piston in the part exceeding described valve gap (6) and fixes step (303) and piston connection screw thread (304), and described piston (8) is threadedly attached on described piston connection screw thread (304) and is fixed on described piston by locking nut (20) and fixes on step (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497513.7A CN105889529A (en) | 2016-06-30 | 2016-06-30 | Plunger type well drilling throttle valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610497513.7A CN105889529A (en) | 2016-06-30 | 2016-06-30 | Plunger type well drilling throttle valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105889529A true CN105889529A (en) | 2016-08-24 |
Family
ID=56719400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610497513.7A Pending CN105889529A (en) | 2016-06-30 | 2016-06-30 | Plunger type well drilling throttle valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105889529A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280136A (en) * | 2021-06-07 | 2021-08-20 | 杭州春江阀门有限公司 | Intelligent control valve with data remote transmission function |
| CN113418011A (en) * | 2021-07-27 | 2021-09-21 | 苏州道森钻采设备股份有限公司 | Puncture-corrosion-resistant zero-sealing throttle valve |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61228167A (en) * | 1985-03-30 | 1986-10-11 | Babcock Hitachi Kk | Regulating valve for high temperature and high pressure |
| CN102207217A (en) * | 2011-05-30 | 2011-10-05 | 上海阀门厂有限公司 | Spring-type stabilizer safety valve |
| CN202302012U (en) * | 2011-10-18 | 2012-07-04 | 天津国际机械有限公司 | Spring shock absorption pre-resetting angle type hydraulic fast switching valve |
| CN203431210U (en) * | 2013-09-09 | 2014-02-12 | 大英县大科机械设备制造有限公司 | Bidirectional balancing type stop valve |
| CN203847730U (en) * | 2014-05-23 | 2014-09-24 | 什邡慧丰采油机械有限责任公司 | Seal cartridge embedded type throttle valve |
| CN204459216U (en) * | 2015-02-12 | 2015-07-08 | 宣达实业集团有限公司 | High-pressure self-balance self-sealing piston formula regulates throttling stop valve |
| CN205824216U (en) * | 2016-06-30 | 2016-12-21 | 纽威石油设备（苏州）有限公司 | Plunger type drilling well choke valve |
-
2016
- 2016-06-30 CN CN201610497513.7A patent/CN105889529A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61228167A (en) * | 1985-03-30 | 1986-10-11 | Babcock Hitachi Kk | Regulating valve for high temperature and high pressure |
| CN102207217A (en) * | 2011-05-30 | 2011-10-05 | 上海阀门厂有限公司 | Spring-type stabilizer safety valve |
| CN202302012U (en) * | 2011-10-18 | 2012-07-04 | 天津国际机械有限公司 | Spring shock absorption pre-resetting angle type hydraulic fast switching valve |
| CN203431210U (en) * | 2013-09-09 | 2014-02-12 | 大英县大科机械设备制造有限公司 | Bidirectional balancing type stop valve |
| CN203847730U (en) * | 2014-05-23 | 2014-09-24 | 什邡慧丰采油机械有限责任公司 | Seal cartridge embedded type throttle valve |
| CN204459216U (en) * | 2015-02-12 | 2015-07-08 | 宣达实业集团有限公司 | High-pressure self-balance self-sealing piston formula regulates throttling stop valve |
| CN205824216U (en) * | 2016-06-30 | 2016-12-21 | 纽威石油设备（苏州）有限公司 | Plunger type drilling well choke valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113280136A (en) * | 2021-06-07 | 2021-08-20 | 杭州春江阀门有限公司 | Intelligent control valve with data remote transmission function |
| CN113418011A (en) * | 2021-07-27 | 2021-09-21 | 苏州道森钻采设备股份有限公司 | Puncture-corrosion-resistant zero-sealing throttle valve |
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Application publication date: 20160824 |